@article{de_Aquino_2025, title={SLEDgeHammer: A Frequent Pattern-Based Cluster Validation Index for Categorical Data}, volume={13}, ISSN={2227-7390}, url={http://dx.doi.org/10.3390/math13172832}, DOI={10.3390/math13172832}, number={17}, journal={Mathematics}, publisher={MDPI AG}, author={de Aquino, Roberto Douglas G. and Verri, Filipe A. N. and de Amorim, Renato Cordeiro and Curtis, Vitor V.}, year={2025}, month=Sept, pages={2832} }